feat(docs): migrate documentation site into monorepo (#5912)

apps/docs/docs/widgets/notifications/index.mdx

@@ -0,0 +1,42 @@
+---
+title: 'Notifications'
+description: 'Display notification history from an integration'
+hide_title: true
+---
+
+import { WidgetHeader } from '@site/src/components/widgets/header';
+import { AddingWidget } from '@site/src/components/widgets/adding';
+import { WidgetConfig } from '@site/src/components/widgets/configuration';
+import { WidgetIntegrations } from '@site/src/components/widgets/integrations';
+import { IconAd } from "@tabler/icons-react";
+import Tabs from '@theme/Tabs';
+import TabItem from '@theme/TabItem';
+import { notificationsWidget } from '.';
+import { ntfyIntegration } from '@site/docs/integrations/ntfy';
+import { nextcloudIntegration } from '@site/docs/integrations/nextcloud'
+
+<WidgetHeader
+  widget={notificationsWidget}
+  categories={['Notifications', "Messaging"]}
+/>
+
+The notifications widget allows you to display notifications from various integrations in a unified view.
+
+### Screenshots
+
+import notificationsScreenshot from './img/notifications.png';
+
+<img src={notificationsScreenshot} alt="notifications" width={256} height={256} />
+
+### Supported Integrations
+
+<WidgetIntegrations
+  items={[
+    { integration: ntfyIntegration },
+    { integration: nextcloudIntegration }
+  ]}
+/>
+
+### Adding the widget
+
+<AddingWidget />

apps/docs/docs/widgets/notifications/index.ts

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+import { WidgetDefinition } from "@site/src/types";
+import { IconMessage } from "@tabler/icons-react";
+
+export const notificationsWidget: WidgetDefinition = {
+  icon: IconMessage,
+  name: "Notifications",
+  description: "Display notification history from an integration",
+  path: "../../widgets/notifications",
+  configuration: {
+    items: [],
+  },
+};